Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to __________.

Options

A. habitat loss
B. hunting
C. Alien species invasion
D. overexploitation

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the cause of extinction for the Dodo bird, Stellar sea cow, and Passenger pigeon.

2. **Understand the Context**: These species are known to have gone extinct in the past. Understanding the reasons behind their extinction is crucial.

3. **Review Possible Causes**: The possible causes of extinction mentioned are habitat loss, hunting, alien species invasion, and over-exploitation.

4. **Analyze Each Cause**:
- **Habitat Loss**: This is a significant factor in many extinctions, but it is not the primary reason for the extinction of the mentioned species.
- **Hunting**: While hunting has contributed to the decline of many species, it is not the sole reason for the extinction of these three.
- **Alien Species Invasion**: This can lead to the decline of native species, but it is not directly related to the extinction of the Dodo, Stellar sea cow, and Passenger pigeon.
- **Over-Exploitation**: This refers to the excessive use of species for resources, which has led to the extinction of these particular species.

5. **Conclude the Answer**: The correct answer is that the Dodo bird, Stellar sea cow, and Passenger pigeon are examples of extinction due to **over-exploitation**.

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